EP0180253B1 - Procédé pour l'imperméabilisation de véhicules automobiles dans des stations de lavage et moyens pour la mise en oeuvre du procédé - Google Patents

Procédé pour l'imperméabilisation de véhicules automobiles dans des stations de lavage et moyens pour la mise en oeuvre du procédé Download PDF

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Publication number
EP0180253B1
EP0180253B1 EP85201236A EP85201236A EP0180253B1 EP 0180253 B1 EP0180253 B1 EP 0180253B1 EP 85201236 A EP85201236 A EP 85201236A EP 85201236 A EP85201236 A EP 85201236A EP 0180253 B1 EP0180253 B1 EP 0180253B1
Authority
EP
European Patent Office
Prior art keywords
weight
foam
water
hydrophobing
hydrophobing agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85201236A
Other languages
German (de)
English (en)
Other versions
EP0180253A2 (fr
EP0180253A3 (en
Inventor
Jürgen Dr. Meister
Manfred Pressler
Horst Dr. Menzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rain Carbon Germany GmbH
Original Assignee
Ruetgerswerke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ruetgerswerke AG filed Critical Ruetgerswerke AG
Priority to AT85201236T priority Critical patent/ATE38362T1/de
Publication of EP0180253A2 publication Critical patent/EP0180253A2/fr
Publication of EP0180253A3 publication Critical patent/EP0180253A3/de
Application granted granted Critical
Publication of EP0180253B1 publication Critical patent/EP0180253B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S3/00—Vehicle cleaning apparatus not integral with vehicles

Definitions

  • the invention relates to a method for permanent water repellency of vehicles as well as new auto-water repellants necessary for this.
  • Such liquid agents are added to the water of the last rinsing process in small amounts in car washes, and they cause the water film on the paint surface to tear and the water to drain off easily and as completely as possible.
  • Usual autohydrophobing agents such as z. B. are known from DE-A-3 032 220, contain cationic surfactants, mostly quaternary ammonium compounds, imidazoline derivatives and optionally wax emulsions in order to achieve a hydrophobization effect.
  • This water repellency effect is relatively narrow in time and many motor vehicle owners want longer and higher quality water repellency of the paints.
  • the object was therefore to develop a method and agent which, when used in a car wash, achieve a water-repellent effect which shows a considerably improved durability compared to the effect achieved so far.
  • Agents which cause a substantially improved durability of the hydrophobizing effect on the paint surface are known from DE-A-1 816 392 in the field of car polishes. Their improved durability is due to the use of amino-functional polysiloxanes.
  • the amino-functional polysiloxanes which are insoluble in water, are used in such polishes in formulations which contain hydrocarbons as solvents. These formulations are insensitive to detergents and are incompatible with water and not foamable. In a car wash, however, the water repellency must be carried out from an aqueous medium.
  • Amino-functional polysiloxanes can be made water-compatible by adding strong organic acids. It was found that corresponding acidic aqueous solutions of amino-functional polysiloxanes are compatible with conventional detergents and that they also cause long-term hydrophobization on a paint surface.
  • the hydrophobizing agent is applied as a foam to the cleaned paint surface.
  • This foam is produced in a commercially available foam aggregate and applied to the surface of the paint all over. After a certain exposure time, the foam is rinsed off with water in an additional rinse cycle.
  • the contact time should be several minutes if possible in order to achieve optimal networking. On the other hand, however, this would disrupt the process in the washing system, or the belt length would have to be increased considerably. For this reason, the exposure time of the foam is limited to 20 to 60 s based on these considerations and the foam is then rinsed off.
  • a foam-destroying agent such as small amounts of a hydrocarbon, a diacetal or higher alcohol, can additionally be added to the rinse water.
  • the water repellents used have the following composition:
  • cationic surfactants used are imidazoline derivatives and / or quaternary ammonium compounds of the type
  • R 2 C ⁇ - C 20 alkyl or alenyl, R 3 and R 4 C l - C 4 means.
  • the alkenyl radical (R 1 and R 2 ) which corresponds to the natural tallow fat or the stearyl radical is preferred.
  • R 3 and R 4 methyl groups are preferred.
  • Anions are chloride, bromide, iodide, phosphate, acetate or methosulfate.
  • Emulsifiers for the water-insoluble alkyl acetal are fatty amine alkoxylates or aromatic alkoxylates.
  • glycol any of the technically important glycols can be used as the glycol. Examples are ethylene glycol, propyl, butyl, diethylene, triethylene or dipropyl glycol
  • Foaming agents are surfactants which, in addition to interfacial activity, also have a film-forming ability.
  • the emulsifiers can also act as foaming agents. However, in order to achieve an improved effect, the addition of at least one other foaming agent is recommended.
  • Typical foaming agents in aqueous solutions are soaps, paraffin chain amines or saponins.
  • a commercially available organic polysiloxane with one or more amino groups of the functional groups is used as the amino-functional polysiloxane.
  • Such products are e.g. B. sold under the name Baysilone OF 4061 by Bayer or DC 536 by Dow Corning.
  • the organic acids which can be used are liquid or solid, mono- or polyvalent carboxylic acids which dissolve in water and whose acid strength is so great that they react easily with amines to form salts.
  • Preferred acids are acetic, malonic, tartaric or citric acid.
  • agents are stable aqueous solutions, but are diluted 100 to 300 times with water, depending on the concentration, before use.
  • a foam is produced from this agent using conventional foam aggregates, which is applied to the cleaned paint surface of a motor vehicle in a car wash and rinsed with water after an exposure time of preferably 20-60 s. Then the water film breaks, the water drips off and the vehicle is blown dry in the usual way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Detergent Compositions (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Paints Or Removers (AREA)

Claims (5)

1. Procédé pour l'imperméabilisation de véhicules automobiles dans des stations de lavage par dépôt d'un agent hydrophobant sur la surface de peinture nettoyée, caractérisé en ce que l'on met en oeuvre, à côté d'agents tensioactifs cationiques couramment utilisés, des agents émulsionnants et un glycol, des agents moussants, un acide organique et un polysiloxane à fonction amino, l'agent hydrophobant etant déposé sous forme de mousse recouvrant la surface et la mousse étant enlevée par rinçage après un temps d'action suffisant, dans une opération de rinçage subséquente à l'eau claire.
2. Procédé selon la revendication 1, caractérisé en ce que l'on ajoute un agent antimousse à l'eau utilisée pendant l'opération de rinçage à l'eau claire.
3. Procédé selon la revendication 1, caractérisé en ce que l'on enlève par rinçage la mousse déposée, après un temps d'action de 20 - 60 s.
4. Procédé selon les revendications 1 à 3, caractérisé en ce que l'on met en oeuvre un agent hydrophobant constitué par
5 à 20 % en poids d'agent tensioactif cationique
0,5 à 10 % en poids d'agent émulsionnant
1 à 5 % en poids d'agent moussant
5 à 40 % en poids de glycol
0,5 à 5 % en poids de polysiloxane à fonction amino
3 à 10 % en poids d'acide organique,

le reste étant constitué par de l'eau.
5. Procédé selon la revendication 4, caractérisé en ce quel'on met en oeuvre un agent hydrophobant constitué par:
10 à 20 % en pôids de chlorure de di(suif)diméthylammonium
1 à 10 % en poids d'éthoxylate d'oléylamine (2 moles d'OE)
1 à 5 % en poids de n(suif)-1,3-diamino-propane
5 à 40 % en poids de butylglycol
0,5 à 5% en poids de polysiloxane à fonction amino
3 à 10% en poids d'acide acétique,

le reste étant constitué par de l'eau.
EP85201236A 1984-10-27 1985-07-26 Procédé pour l'imperméabilisation de véhicules automobiles dans des stations de lavage et moyens pour la mise en oeuvre du procédé Expired EP0180253B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85201236T ATE38362T1 (de) 1984-10-27 1985-07-26 Verfahren zur hydrophobierung von kraftfahrzeugen in waschanlagen und mittel zur durchfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843439440 DE3439440A1 (de) 1984-10-27 1984-10-27 Verfahren zur hydrophobierung von kraftfahrzeugen in waschanlagen und mittel zur durchfuehrung des verfahrens
DE3439440 1984-10-27

Publications (3)

Publication Number Publication Date
EP0180253A2 EP0180253A2 (fr) 1986-05-07
EP0180253A3 EP0180253A3 (en) 1987-03-25
EP0180253B1 true EP0180253B1 (fr) 1988-11-02

Family

ID=6248947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85201236A Expired EP0180253B1 (fr) 1984-10-27 1985-07-26 Procédé pour l'imperméabilisation de véhicules automobiles dans des stations de lavage et moyens pour la mise en oeuvre du procédé

Country Status (3)

Country Link
EP (1) EP0180253B1 (fr)
AT (1) ATE38362T1 (fr)
DE (2) DE3439440A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4126379A4 (fr) * 2020-04-01 2024-05-22 Energizer Auto, Inc. Compositions de lavage de voiture à finition hydrophobe et leurs procédés d'utilisation

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140931C1 (fr) * 1991-12-12 1993-04-01 Wesumat Fahrzeugwaschanlagen Gmbh, 8900 Augsburg, De
AT103U1 (de) * 1992-04-16 1995-02-27 Purator Umwelttechnik Gmbh Verfahren zum waschen und trocknen sowie gegebenenfalls wachsen in kraftfahrzeugwaschanlagen
DE4415637C2 (de) * 1994-05-04 1998-08-06 Wap Reinigungssysteme Verfahren und Vorrichtung zur Klärung und Aufbereitung von Waschwassern aus Fahrzeugwaschanlagen
GB9503596D0 (en) * 1995-02-23 1995-04-12 Unilever Plc Cleaning composition comprising quaternised poly-dimethylsiloxane and nonionic surfactant
GB2355014A (en) * 1999-10-05 2001-04-11 Procter & Gamble Foams and compositions containing these foams
DE19953457A1 (de) * 1999-11-05 2001-05-23 Rwe Dea Ag Verfahren zur Reinigung von Oberflächen
DE10107772A1 (de) * 2001-02-16 2002-09-05 Christ Otto Ag Emulsion für die Konservierung und/oder Trocknung von Fahrzeugen
DE102014117889A1 (de) 2014-12-04 2016-06-09 Vorwerk & Co. Interholding Gesellschaft mit beschränkter Haftung Feuchtreinigungsvorrichtung und Hydrophobierungsmittel zur Behandlung von Oberflächen
FR3048625B1 (fr) * 2016-03-09 2018-04-06 Alstom Transport Technologies Installation de lavage mettant en oeuvre l'effet lotus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6818330A (fr) * 1967-12-26 1969-06-30
GB1318699A (en) * 1970-01-14 1973-05-31 Ici Ltd Polish compositions
DE2540873C2 (de) * 1975-09-13 1984-08-23 Basf Ag, 6700 Ludwigshafen Schaumgedämpfte Wasch- und Reinigungsmittel
DE2806980A1 (de) * 1978-02-18 1979-08-30 Hoechst Ag Autoglanztrocknungsmittel
JPS5662861A (en) * 1979-10-29 1981-05-29 Nippon House Hoorudo Kk Water-repellent glazing agent
DE3032220C1 (de) * 1980-08-27 1982-04-08 Rütgerswerke AG, 6000 Frankfurt Trocknungsmittel fuer Autokarosserieflaechen in automatischen Waschanlagen
JPS58161644A (ja) * 1982-03-16 1983-09-26 Takeuchi Tekko Kk 洗車およびワツクス掛け方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4126379A4 (fr) * 2020-04-01 2024-05-22 Energizer Auto, Inc. Compositions de lavage de voiture à finition hydrophobe et leurs procédés d'utilisation
US12590272B2 (en) 2020-04-01 2026-03-31 Energizer Auto, Inc. Hydrophobic finish car wash compositions comprising an aminosilicone and amphoteric/nonionic surfactant mixture

Also Published As

Publication number Publication date
EP0180253A2 (fr) 1986-05-07
EP0180253A3 (en) 1987-03-25
DE3439440A1 (de) 1986-05-07
ATE38362T1 (de) 1988-11-15
DE3565964D1 (en) 1988-12-08

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